Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7b8d3b17ec0ad0b9…

MALICIOUS

Office (OLE) / .DOCX

153.4 KB Created: 2020-10-19 09:55:00 Authoring application: Microsoft Office Word
MD5: ef20120d023055622f27ef3f56ee44d8 SHA-1: 6f272aeecaabcc4ac146ecc8a41cdddfc2e22f1c SHA-256: 7b8d3b17ec0ad0b9701276b2c75c46c0d6ebe34228df6004864ff97e9aa3e41d
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of the 'macros.bas' artifact further supports this. The ClamAV signature 'Doc.Downloader.Emotet-9780434-0' directly attributes this sample to the Emotet family, which is known for its downloader capabilities. The document body appears to be heavily obfuscated or corrupted, preventing analysis of its specific lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780434-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780434-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
1480f6f3dc12ae5544443e21682a29de409fc914bcdbfb39f5c72e71174c3bfb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15487 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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